EWG Skin Deep® | Silka Full Prescription Strength Terbinafine Hydrochloride 1% Antifungal

HOW WE DETERMINE SCORES LEARN MORE ABOUT EWG VERIFIED®

Data Availability:

Limited

Silka Full Prescription Strength Terbinafine Hydrochloride 1% Antifungal Cream for Athlete's Foot

WHERE TO BUY

Amazon

As an Amazon Associate, EWG earns from qualifying purchases.

Ingredient concerns

See how this product scores for common concerns.

LOW

Cancer
HIGH

Allergies & Immunotoxicity
LOW

Developmental and Reproductive Toxicity
HIGH

Use Restrictions

Ingredient scores

Ingredients are scored based on their formulation and concentration in this product. Click on an ingredient for more information.

TERBINAFINE HYDROCHLORIDE

Data Availability: Limited

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BENZYL ALCOHOL

Data Availability: Fair

FUNCTION(S)	external analgesic, fragrance ingredient, oral health care drug, preservative, solvent;viscosity decreasing agent, masking, solvent
CONCERNS	• Allergies/immunotoxicity (high) • Use restrictions (moderate) • Non-reproductive organ system toxicity (moderate) • Occupational hazards (high)
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CETYL ALCOHOL

Data Availability: Limited

FUNCTION(S)	emulsion stabilizer, fragrance ingredient, opacifying agent, surfactant - emulsifying agent;surfactant - foam booster, viscosity increasing agent - aqueous, viscosity increasing agent -nonaqueous, emollient, emulsifying, emulsion stabilising, foam boosting, masking, opacifying, surfactant, viscosity controlling
CONCERNS	• Non-reproductive organ system toxicity (moderate)
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CETYL PALMITATE
Appeared as: CETY! PALMITATE

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, skin-conditioning agent - occlusive, emollient, masking, skin conditioning
CONCERNS	• Use restrictions (low)
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ISOPROPYL MYRISTATE

Data Availability: Fair

FUNCTION(S)	binder, fragrance ingredient, skin-conditioning agent - emollient, binding, emollient, perfuming, skin conditioning, solvent
CONCERNS	• Allergies/immunotoxicity (low) • Enhanced skin absorption • Irritation (skin, eyes, or lungs) (moderate)
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POLYSORBATE-60

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, surfactant - emulsifying agent, surfactant - solubilizing agent, emulsifying
CONCERNS	• Use restrictions (low) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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WATER
Appeared as: PURIFIED WATER

Data Availability: Robust

FUNCTION(S)	solvent
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SODIUM HYDROXIDE

Data Availability: Fair

FUNCTION(S)	denaturant, ph adjuster, buffering
CONCERNS	• Use restrictions (high) • Non-reproductive organ system toxicity (moderate) • Irritation (skin, eyes, or lungs) (low)
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SORBITAN STEARATE
Appeared as: SORBITAN MONOSTEARATE

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, surfactant - emulsifying agent, emulsifying
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STEARYL ALCOHOL

Data Availability: Limited

FUNCTION(S)	emulsion stabilizer, fragrance ingredient, surfactant - emulsifying agent, surfactant - foambooster, viscosity increasing agent - aqueous, viscosity increasing agent - nonaqueous, emollient, emulsifying, emulsion stabilising, foam boosting, masking, opacifying, refatting, surfactant, viscosity controlling
CONCERNS	• Irritation (skin, eyes, or lungs) (moderate)
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Ingredients from packaging:

Active Ingredients: Terbinafine hydrochloride 1.0%; Inactive Ingredients: BENZYL ALCOHOL, CETYL ALCOHOL, CETYL PALMITATE, ISOPROPYL MYRISTATE, POLYSORBATE 60, PURIFIED WATER, SODIUM HYDROXIDE, SORBITAN MONOSTEARATE, STEARYL ALCOHOL.

Product's animal testing policies

Some cosmetics companies have taken People for the Ethical Treatment of Animals and Leaping Bunny animal-testing pledges. For consumers who are concerned about companies’ policies on animal testing, Skin Deep reports this information.

Unknown

Leading international certifiers PETA and Leaping Bunny have no information concerning this company’s use of animal testing.

Understanding scores

Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.

Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.

HOW WE DETERMINE SCORES

Hazard score

The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG VERIFIED^® mark means a product meets EWG’s strictest criteria for transparency and health.

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST

Low Availability

Moderate Availability

High Availability